Phosphate glass brings together an extended life span of Er3+ upper laser stage with effective Electrical power transfer involving Yb3+ and Er3+ ions and diminished upconversion losses, thus offering productive Procedure in passively Q-switched diode-pumped and flash-lump pumped lasers Employed in array-finders. language �?中国 韩国 韩国 韩国 韩国 韩国  https://matthewn266rni5.aboutyoublog.com/profile